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$526+ Cheap flights from Heathrow (LHR) to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — TYS
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Knoxville McGhee Tyson are usually found in September or November, booked 66 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$779
(TravelUp)

One-way from

$526
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$992
Provider with most accurate pricing for London Heathrow-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Knoxville McGhee Tyson flights.
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From London Heathrow to Knoxville McGhee Tyson
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One-way flight from London Heathrow to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 10% potential increase in price ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Heathrow to Knoxville

Cheapest flights from Heathrow to Knoxville
Explore the most affordable flight options available from Heathrow to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This TravelUp deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:45 pmLHR - TYS
1 stop13h 10mBritish Airways
Wed 12/176:29 pmTYS - LHR
1 stop12h 06mBritish Airways
Deal found 10/26$779
This The Travel House deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:40 amLHR - TYS
2 stops22h 01mScandinavian Airlines
Mon 12/83:57 pmTYS - LHR
2 stops20h 43mScandinavian Airlines
Deal found 10/27$784
This TravelUp deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:55 amLHR - TYS
1 stop15h 03mVirgin Atlantic
Tue 12/1612:50 pmTYS - LHR
1 stop14h 55mVirgin Atlantic
Deal found 10/25$793
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:30 amLHR - TYS
2 stops17h 28mDelta
Tue 12/1612:50 pmTYS - LHR
1 stop14h 55mDelta
Deal found 10/25$808
This The Travel House deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/232:10 pmLHR - TYS
1 stop12h 11mFinnair
Sun 11/309:56 pmTYS - LHR
1 stop29h 19mFinnair
Deal found 10/26$829
This TravelUp deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:55 amLHR - TYS
1 stop19h 33mVirgin Atlantic
Thu 12/183:57 pmTYS - LHR
1 stop10h 53mVirgin Atlantic
Deal found 10/27$835
This Netflights deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:55 amLHR - TYS
2 stops19h 46mVirgin Atlantic
Mon 12/82:37 pmTYS - LHR
1 stop10h 48mVirgin Atlantic
Deal found 10/25$843
This The Travel House deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/202:45 pmLHR - TYS
1 stop13h 09mFinnair
Mon 12/86:29 pmTYS - LHR
1 stop10h 56mFinnair
Deal found 10/25$846
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:30 amLHR - TYS
2 stops17h 34mUnited Airlines
Sat 12/132:30 pmTYS - LHR
1 stop11h 10mUnited Airlines
Deal found 10/26$853

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Knoxville that are best for you.

Fly from

Heathrow

Fly to

Knoxville

Route

Depart

Return

Price

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 12/9

6:20 am-6:58 pm

2 stops17h 38m

Knoxville McGhee Tyson

Tue 12/16

12:50 pm-8:45 am

1 stop14h 55m

$784

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Tue 12/9

6:30 am-6:58 pm

2 stops17h 28m

Knoxville McGhee Tyson

Tue 12/16

10:23 am-8:45 am

2 stops17h 22m

$808

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 12/10

8:40 am-8:05 pm

2 stops16h 25m

Knoxville McGhee Tyson

Wed 12/17

10:23 am-8:45 am

2 stops17h 22m

$808

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Sun 11/23

2:10 pm-9:21 pm

1 stop12h 11m

Knoxville McGhee Tyson

Sun 11/30

9:56 pm-8:15 am

1 stop29h 19m

$829

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 12/11

8:55 am-11:28 pm

1 stop19h 33m

Knoxville McGhee Tyson

Thu 12/18

3:57 pm-7:50 am

1 stop10h 53m

$835

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 11/20

8:55 am-11:41 pm

2 stops19h 46m

Knoxville McGhee Tyson

Mon 12/8

2:37 pm-6:25 am

1 stop10h 48m

$843

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Thu 11/20

2:45 pm-10:54 pm

1 stop13h 09m

Knoxville McGhee Tyson

Mon 12/8

6:29 pm-10:25 am

1 stop10h 56m

$846

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 12/5

10:15 pm-11:31 am

3 stops42h 16m

$526

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Wed 11/5

9:50 am-5:46 pm

2 stops36h 56m

$621

LondonKnoxville

LHR - TYS

LHRTYS

London Heathrow

Fri 12/5

7:50 am-9:40 pm

2 stops18h 50m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 15 results
1
2

Compare providers for flights from Heathrow to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Knoxville in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Knoxville flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-Knoxville flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Knoxville flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Knoxville

How far ahead should I book a flight from London Heathrow Airport to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Knoxville. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Knoxville, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $511). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of $752). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated October 27, 2025.
See what other customers who have flown with British Airways from London Heathrow Airport to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,481 reviews

Food

6.3

Entertainment

6.4

Boarding

6.9

Crew

7.6

Overall

6.7

Comfort

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,481 reviews
British Airways
6.7
Okay
7,481 reviews

Food

6.3

Entertainment

6.4

Boarding

6.9

Crew

7.6

Overall

6.7

Comfort

6.7

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knoxville from London Heathrow?

    For a flight from London Heathrow to Knoxville, you will be flying into McGhee Tyson. Knoxville McGhee Tyson (TYS) is just 11.3 mi from the center of the city. McGhee Tyson is the only Knoxville airport and it handles 0 inbound flights from London Heathrow per day. 1 airline has flights to Knoxville McGhee Tyson from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Knoxville?

    Airlines like Virgin Atlantic and Delta fly from London Heathrow Airport to Knoxville in about 17h 28m. The time it takes to get you to your destination can typically vary by up to 10m. The distance between London Heathrow Airport and Knoxville is about 4076 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from London Heathrow Airport to Knoxville round-trip?

    Currently priced at $720, British Airways will fly you from London Heathrow Airport to Knoxville and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is priced at 20% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Heathrow to Knoxville that include hotel bookings?

    Yes. In addition to deals on Heathrow to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Knoxville.

  • Can I find deals for business class flights from Heathrow to Knoxville?

    Yes. Cheapflights offers flight deals from Heathrow to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Knoxville?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Knoxville (average of $511). Flying from London Heathrow Airport to Knoxville in July is currently the most expensive (average of $752). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Cherokee
Crossville
Corbin
Bryson City
Alcoa
Oak Ridge
Murphy

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Top airline flying from Heathrow to Knoxville

Discover the top airline that operate flights from Heathrow to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$720Average$1,259FlexibilityNo cancel feeOn-time70%

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